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Cygwin: AF_UNIX: reopen_shmem: fix view size

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Use sizeof (af_unix_shmem_t) as the view size, as when the shared
memory was created.  Previously PAGESIZE was used, causing
NtMapViewOfSection to fail with STATUS_INVALID_VIEW_SIZE.
This commit is contained in:
Ken Brown 2020-10-22 14:55:52 -04:00
parent 7992fc068d
commit 6b08c5e15d
1 changed files with 2 additions and 2 deletions
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4
winsup/cygwin/fhandler_socket_unix.cc
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@ -233,11 +233,11 @@ int
fhandler_socket_unix::reopen_shmem () fhandler_socket_unix::reopen_shmem ()
{ {
NTSTATUS status; NTSTATUS status;
SIZE_T viewsize = PAGESIZE; SIZE_T viewsize = sizeof (af_unix_shmem_t);
PVOID addr = NULL; PVOID addr = NULL;
status = NtMapViewOfSection (shmem_handle, NtCurrentProcess (), &addr, 0, status = NtMapViewOfSection (shmem_handle, NtCurrentProcess (), &addr, 0,
PAGESIZE, NULL, &viewsize, ViewShare, 0, viewsize, NULL, &viewsize, ViewShare, 0,
PAGE_READWRITE); PAGE_READWRITE);
if (!NT_SUCCESS (status)) if (!NT_SUCCESS (status))
{ {